Means for setting dies ? presses



April 21, 1931. T. s. FALSTROM 1,801,490

MEANS FOR SETTING DIES IN PRESSES Filed Jan. 4; 193g 2 Sheets-Sheet 1 fwd/w amam 5 6211. 01mm 7571.

ATTORNEY:

April 1931- T. G. FALSTROM MEANS FOR SETTING DIES IN P'REssEs Filed Jan. 4. 1930 2 Sheets-Sheet 2 var/7'01? Jiwda u &. Gwcmm ATTORNE):

Patented Apr. 21, 1931 UNITED STATES PATENT OFFICE THEODORE G. FALSTROM, OF WEST ORANGE, NEW JERSEY, ASSIGNOR 'IO MONROE CAL- CULATING MACHINE COMPANY, OF ORANGE, NEW JERSEY, A CORPORATION 01' nmwaan f- MEANS FOR SETTING DIES PRESSES Application filed January 4, 1930. Serial No. 418,591.

The invention has relation to power presses and particularly tomeans for setting or aligning dies in presses. An object of the invention is to eliminate the use of liner or dowel 5 pins. Another object of the invention is to provide such an aligning means which is more adapted to the standardization of design in punch press tools. Another object is to reduce the cost of die shoes and punch holders. Another object is to eliminate possibility of the tools shifting out of alignment while the press is being operated. Another object is to provide greater accessibility 'for the tools with less hazard to the operator and to speed up production. Another object is to effect-a saving in toolcost on certain types of tools. Another object is to reduce the skill required on the part ofthe die setter. Another object is to improve the operation of power presses having a pillar-guided slide. Another object is to make more effective. the use of safety appliances attached to the press for the purpose of preventing injuries to the operator. I The invention is particularly adapted for use with the new type of press wherein the slide is guided on four guide posts or pillars sliding in bushings adjustable for wear, but can also be used on presses of the convenitional design. The invention consists in the novel construction and combinations-of parts as set forth in the appended claims.

In the accompanying drawings illustrating an embodiment of the die setting means,

Figure 1 is a front view of a punch press having my die setting means applied thereto; 7 Fig. 2 is a detail top plan view of the lower die holder and die; 40 Fig. 3 isa detail bottom plan View of the upper die holder and die;

Fig. 4 is a perspective detail view of the lower die holder having the die. removed therefrom;

Fig. 5 is a similar view of the lower die; Fig. 6 is a similar view of the upper die holder; and V Fig. 7 is a similar view of the upper die.

' In these drawings, the numerals 1 and 2 designate top. and bottom master bolsters which may be either a part of the 'press, or attached thereto so that there is no possibility of shifting to disturb the alignment of the parts'to be described. These top and bottom master bolsters constitute'upper and lower die holders,.and are both cross-milled with channels 3 and 4 intersecting at right angles, and wherein fit cross-keys'5 and 6, the outer halves or portions of which fit in similar crossmhannels 7 and 8 of the upper die'or punch 9 and the lower die 10. These cross-- keys and channels as shown are ofrectangular form in cross section. It is, of course, essential that the crosschannels of the upper and lower die holders and dies be accurately aligned with one another and in order that this may be done, the following method is employed.

The to or the bottom die holder and die are mille with the cross-channels in quantity, said channels intersecting at right angles as stated. The milling of the other or matching die holders and dies however is done after the tools or dies have been mounted on their shoes or holders and the punch or upperdie entered into the lower die. The entire unit is then clamped together and placed in a simple fixture on which the cross-channels already milled are aligned with the milling cutter for the cross-channels to be milled.

The set up of this means is readily accomplished with the aid of a simple gauge and as the work does not require any great amount of skill, it may be done very economically.

On presses which have dovetail slides and where there is difficulty in maintaining an accurate adjustment, it would be necessary to equip the press witha' master liner pin die set. This same die set, being equipped with keys to fit the channels in theupper and lower die holders could be used with any number of diiferent dies, making it unnecessary to use a separate liner pin set for eachaset of tools.

I claim: p

1. Means for setting dies in presses, comprising upper and lower die holders and dies, each die holder and its related die having in the contacting faces thereof transverse aligned recesses forming a transverse chanaligned nel, and transverse aligning keys fitting in the channels.

2. Means for setting dies in presses, comprising upper and lower die holders and dies, each die holder and its related die having in the contacting faces thereof transverse aligned recesses forming transverse channels angularly related to each other, and transverse keys also angularly related to each other fitting in said channels.

3. Means for setting dies in presses, comprising u per and lower die holders and dies, each die older and its related die having in the contacting faces thereof transverse aligned recesses forming transverse channels angularly related to and intersecting each other, and transverse aligning keys also angularly related to each other fitting in said channels.

4. A die set, comprising upper and lower die holders, a set of interchangeable upper dies and a set of interchangeable lower dies, each die holder and its related dies having in the contacting faces thereof transverse aligned recesses forming a transverse chan nel, and transverse aligning keys fitting in the channels.

5. A die set, comprising upper and lower die holders, a set of interchangeable upper dies and a set of interchangeable lower dies, each die holder and its related dies having in the contacting faces thereof transverse recesses forming transverse channels angularly related to each other, and transverse aligning l 'eys also angularly related to each other and fitting in said channels.

6. A die set, comprising upper and lower die holders, a set of interchangeable upper dies and a set of interchangeable lower dies, each die holder and its related dies having in the contacting faces thereof transverse aligned recesses forming transverse channels angularly related to and intersectin each other, and transverse aligning keys a so angularly related to each other fitting in said channels.

Si ned at Orange in the county of Essex and tate of New Jersey. 7

THEODORE G. FALSTROM. 

